Separation mechanism of lattice-bound trace elements from quartz by KCl-doping calcination and pressure leaching

被引：25

作者：

Lin, Min ^{[1
]}

Pei, Zhenyu ^{[1
]}

Li, Yubiao ^{[1
]}

Liu, Yuanyuan ^{[1
]}

Wei, Zhenlun ^{[1
]}

Lei, Shaomin ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China

来源：

MINERALS ENGINEERING | 2018年 / 125卷

关键词：

Quartz; Lattice-bound trace element; KCl-doping calcination; Pressure leaching; COLOR-CENTERS; FLOTATION; ADSORPTION; COLLECTORS; MUSCOVITE; DEFECTS; EPR;

D O I：

10.1016/j.mineng.2018.05.029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Trace elements bound in quartz lattice are efficiently removed by KCl-doping calcination and pressure leaching. Removal rate of lattice Al reaches 73.5% when 70.4% of lattice-bound trace elements are removed from quartz sand at optimum conditions. The lattice-bound trace elements in quartz are activated by high-temperature calcination, released during phase transformation from alpha-quartz to cristobalite, diffused to quartz surface by surface enrichment, and removed by oxidation, chlorination and pressure leaching.

引用

页码：42 / 49

页数：8

共 31 条

[1] Theoretical calculations of [AlO4/M+]0 defects in quartz and crystal-chemical controls on the uptake of Al [J].

Botis, S. M. ;

Pan, Yuanming .

MINERALOGICAL MAGAZINE, 2009, 73 (04) :537-550

[2] STOICHIOMETRIC SUBSTITUTION IN NATURAL QUARTZ [J].

DENNEN, WH .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1966, 30 (12) :1235-&

[3] THE ROLE OF ALKALINE-EARTH CATIONS IN FLOTATION SEPARATION OF QUARTZ FROM FELDSPAR [J].

ELSALMAWY, MS ;

NAKAHIRO, Y ;

WAKAMATSU, T .

MINERALS ENGINEERING, 1993, 6 (12) :1231-1243

[4] Trace Element Compositions and Defect Structures of High-Purity Quartz from the Southern Ural Region, Russia [J].

Goetze, Jens ;

Pan, Yuanming ;

Mueller, Axel ;

Kotova, Elena L. ;

Cerin, Daniele .

MINERALS, 2017, 7 (10)

[5] PARAMAGNETIC RESONANCE IN NEUTRON-IRRADIATED DIAMOND AND SMOKY QUARTZ [J].

GRIFFITHS, JHE ;

OWEN, J ;

WARD, IM .

NATURE, 1954, 173 (4401) :439-440

[6]

Gtze J., 2012, Quartz: Deposits, mineralogy and analytics, V1st ed., P1, DOI DOI 10.1007/978-3-642-22161-3_1

[7]

Haus R., 2012, Quartz: Deposits, Mineralogy and Analytics, V1st ed., P29, DOI [10.1007/978-3-642-22161-3_2, DOI 10.1007/978-3-642-22161-3_2]

[8] CAR-PARRINELLO MOLECULAR-DYNAMICS WITH VANDERBILT ULTRASOFT PSEUDOPOTENTIALS [J].

LAASONEN, K ;

PASQUARELLO, A ;

CAR, R ;

LEE, C ;

VANDERBLIT, D .

PHYSICAL REVIEW B, 1993, 47 (16) :10142-10153

[9] Mineralogy and Processing of Hydrothermal Vein Quartz from Hengche, Hubei Province (China) [J].

Lin, Min ;

Pei, Zhenyu ;

Lei, Shaomin .

MINERALS, 2017, 7 (09)

[10] EPR STUDY OF IMPURITY-RELATED COLOR CENTERS IN GERMANIUM-DOPED QUARTZ [J].

MACKEY, JH .

JOURNAL OF CHEMICAL PHYSICS, 1963, 39 (01) :74-&

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